S7 Airlines Flight 778 (S7778/SBI778) was a scheduled domestic passenger flight from Moscow to Irkutsk, Russia. On 9 July 2006, at 06:44 local time (8 July, 22:44 UTC), the Airbus A310-324 aircraft operating the route overran the runway during its landing in Irkutsk. The aircraft failed to stop and crashed through the airport's concrete perimeter fence, struck rows of private garages and burst into flames, killing 125 people. With 125 deaths, the crash remains as S7 Airlines' deadliest aviation disaster. The crash was also the second Russian air disaster in less than three months, after Armavia Flight 967. The final report of the Interstate Aviation Committee (MAK) investigation concluded that the cause of the crash was attributed to pilot error. While the captain was reducing the thrust reverser of the right engine, he unintentionally moved the left engine's throttle lever forward, causing the left engine to produce significant thrust. His co-pilot failed to monitor the engine parameters and as a result the crew were unable to realize the source of the problem. The crew failed to resolve the issue and the aircraft eventually overran the runway and crashed. Background Aircraft Airbus said the aircraft involved in the accident was registered as previously N812PA and MSN (Manufacturer Serial Number) 442. It was delivered new in June 1987 to Pan Am and later to Delta Air Lines after Pan Am's bankruptcy in 1991. The aircraft was then delivered to Aeroflot on 1 March 1995 and finally with S7 in July 2004. It had accumulated more than 52,000 flight hours in more than 10,000 flights. It was powered by two Pratt & Whitney PW4152 engines. Passengers and crew There were 195 passengers and 8 crew members aboard (two pilots and six flight attendants), totaling 203 people. The ITAR-Tass news agency in Russia reported that many children were among the passengers who were flying to a holiday on Lake Baikal, near Irkutsk, about east of Moscow. A total of 14 children, up to age 12, were on board. Besides Russian citizens, who were the majority of passengers, there were also 2 Polish tourists traveling to Mongolia via Irkutsk. There were 14 other non-Russians on board, 3 each from Germany, China, and Belarus, the 2 Polish tourists, 2 Moldavians, and one from Azerbaijan. Among the passengers were Maria Rasputin, the daughter of Russian writer Valentin Rasputin and Sergei Koryakov, the head of Federal Security Service